<?xml version="1.0" encoding="UTF-8"?>
<dxl:DXLMessage xmlns:dxl="http://greenplum.com/dxl/2010/12/">
  <dxl:Comment><![CDATA[
    Objective: Ensure that nested join on a with a cast'd column doesn't
    drop the projected column
    while doing a predicate push down as part of the
    PexprTransposeSelectAndProject preprocessing step.

    Setup:
      CREATE TABLE t1(join_id int, select_id int);
      CREATE TABLE t2(join_id int, select_id int);
      CREATE TABLE t3(select_id int);
      CREATE TABLE t5(id int, id1 int, name varchar, value double precision);
      INSERT INTO t1 SELECT i,i from generate_series(1,10)i;
      INSERT INTO t2 SELECT i,i from generate_series(1,10)i;
      INSERT INTO t3 SELECT i from generate_series(1,10)i;

      EXPLAIN SELECT * FROM
      (
        SELECT 'raw' AS name1, value::text AS l
        FROM
            (SELECT t2.select_id, 'something' AS name
             FROM t1 JOIN t2 on t1.join_id = t2.join_id
             UNION
             SELECT t3.select_id, 'something_else' AS name
             FROM t3
            )tt1
        JOIN t5 ON id1::text = tt1.select_id::text AND tt1.name::text = t5.name::text
      )tt3 WHERE name1::text = 'raw';
                                                                                         QUERY PLAN
      ------------------------------------------------------------------------------------------------------------------------------------------
       Result  (cost=0.00..1724.00 rows=1 width=16)
         ->  Gather Motion 3:1  (slice1; segments: 3)  (cost=0.00..1724.00 rows=1 width=8)
               ->  Hash Join  (cost=0.00..1724.00 rows=1 width=8)
                     Hash Cond: (((t5.id1)::text = (t2.select_id)::text) AND ((t5.name)::text = ('something'::text)))
                     ->  Redistribute Motion 3:3  (slice2; segments: 3)  (cost=0.00..431.00 rows=1 width=20)
                           Hash Key: (t5.id1)::text
                           ->  Seq Scan on t5  (cost=0.00..431.00 rows=1 width=20)
                                 Filter: (name = ANY ('{something,something_else}'::character varying[]))
                     ->  Hash  (cost=1293.00..1293.00 rows=1 width=12)
                           ->  Redistribute Motion 3:3  (slice3; segments: 3)  (cost=0.00..1293.00 rows=1 width=12)
                                 Hash Key: (t2.select_id)::text
                                 ->  GroupAggregate  (cost=0.00..1293.00 rows=1 width=12)
                                       Group Key: t2.select_id, ('something'::text)
                                       ->  Sort  (cost=0.00..1293.00 rows=1 width=12)
                                             Sort Key: t2.select_id, ('something'::text)
                                             ->  Redistribute Motion 3:3  (slice4; segments: 3)  (cost=0.00..1293.00 rows=1 width=12)
                                                   Hash Key: t2.select_id, ('something'::text)
                                                   ->  Append  (cost=0.00..1293.00 rows=1 width=12)
                                                         ->  Hash Join  (cost=0.00..862.00 rows=1 width=4)
                                                               Hash Cond: (t2.join_id = t1.join_id)
                                                               ->  Seq Scan on t2  (cost=0.00..431.00 rows=1 width=8)
                                                               ->  Hash  (cost=431.00..431.00 rows=1 width=4)
                                                                     ->  Seq Scan on t1  (cost=0.00..431.00 rows=1 width=4)
                                                                           Filter: (('something'::text = ANY ('{something,something_else}'::text[])) AND ('raw'::text = 'raw'::text))
                                                         ->  Result  (cost=0.00..431.00 rows=1 width=12)
                                                               Filter: (('something_else'::text) = ANY ('{something,something_else}'::text[]))
                                                               ->  Seq Scan on t3  (cost=0.00..431.00 rows=1 width=4)
                                                                     Filter: ('raw'::text = 'raw'::text)
       Optimizer: Pivotal Optimizer (GPORCA)
  ]]>
  </dxl:Comment>
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      <dxl:CTEConfig CTEInliningCutoff="0"/>
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          <dxl:CostParam Name="NLJFactor" Value="1024.000000" LowerBound="1023.500000" UpperBound="1024.500000"/>
        </dxl:CostParams>
      </dxl:CostModelConfig>
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